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https://gitlab.com/freepascal.org/lazarus/lazarus.git
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69 lines
2.0 KiB
ObjectPascal
69 lines
2.0 KiB
ObjectPascal
program GetContext;
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{$mode objfpc}{$H+}
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uses
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Classes, SysUtils, CodeCache, CodeToolManager, DefineTemplates,
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CodeToolsConfig, GetContextExample, IdentCompletionTool, FindDeclarationTool;
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const
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ConfigFilename = 'codetools.config';
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var
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Options: TCodeToolsOptions;
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Code: TCodeBuffer;
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CodeContexts: TCodeContextInfo;
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i: Integer;
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ExprType: TExpressionType;
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begin
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// setup the Options
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Options:=TCodeToolsOptions.Create;
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// To not parse the FPC sources every time, the options are saved to a file.
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if FileExists(ConfigFilename) then
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Options.LoadFromFile(ConfigFilename);
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// setup your paths
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Options.FPCPath:='/usr/bin/ppc386';
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Options.FPCSrcDir:=ExpandFileName('~/freepascal/fpc');
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Options.LazarusSrcDir:=ExpandFileName('~/pascal/lazarus');
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// optional: ProjectDir and TestPascalFile exists only to easily test some
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// things.
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Options.ProjectDir:=GetCurrentDir+'/scanexamples/';
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Options.TestPascalFile:=Options.ProjectDir+'getcontextexample.pas';
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// init the codetools
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if not Options.UnitLinkListValid then
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writeln('Scanning FPC sources may take a while ...');
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CodeToolBoss.Init(Options);
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// save the options and the FPC unit links results.
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Options.SaveToFile(ConfigFilename);
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// Example: find declaration of 'TObject'
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// Step 1: load the file
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Code:=CodeToolBoss.LoadFile(Options.TestPascalFile,false,false);
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if Code=nil then
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raise Exception.Create('loading failed '+Options.TestPascalFile);
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// Step 2: find context
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if CodeToolBoss.FindCodeContext(Code,7,14,CodeContexts) then
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begin
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writeln('Contexts found: Count=',CodeContexts.Count);
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for i:=0 to CodeContexts.Count-1 do begin
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ExprType:=CodeContexts[i];
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write('i=',i,' ',ExprTypeToString(ExprType));
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if ExprType.Context.Node<>nil then
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write(' ',ExprType.Context.Tool.ExtractNode(ExprType.Context.Node,[]));
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writeln;
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end;
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end else begin
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writeln('Contexts not found: ',CodeToolBoss.ErrorMessage);
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end;
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CodeContexts.Free;
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Options.Free;
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end.
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